<?php
/**
 * 观察者的主题接口
 * @author 王志昂<wangzhiang@myhexin.com>
 * @create 2013-4-18 16:08:18
 */
interface Subscribe_Subject
{
	public function registerObserver(Subscribe_Push_Observer $observer);
	public function removeObserver(Subscribe_Push_Observer $observer);
	public function notifyObserver($style, $change);
}